Fault Judgment of Underground Electric Locomotive

Fault Judgment of Underground Electric Locomotive

(1) The electric locomotive driver is stuck or blocked and the controller is out of order.

1. Controller Rotary Bearing Oil Deficiency or Damage

2. Pin screw loosening for upper and lower clips fixed by locking device, or loss of opening pin on them, make upper and lower clips out of control.

3. Serious wear of underground mining locomotive clamp rollers

4. Loss or failure of positioning spring

(2) Sand-spraying device without sand-spraying

1. There is no sand, blockage of sand pipes or wet sand in the sand box.

2. Serious Deformation or System Failure of Sand Removal Manipulator

3. Failure of Pneumatic Brake Control Valve or System of Electric Locomotive

(3) The automatic switch trips immediately after the electric locomotive controller closes or the fuse in the bolt connector fuses immediately.

1. Grounding or Short Circuit of Cam Contact Head of Controller

2. Controller Commutator Partial Contact Grounding or Short Circuit

3. Start resistance grounding or short circuit

4. Grounding or Short Circuit of Traction Motor Internal Line

5. Short Circuit Phenomenon in Electric Locomotive Circuit